T-shaped emptying vertical pipe of hydrogen refueling station

Abstract

The utility model provides a T-shaped emptying vertical pipe of a hydrogen refueling station. The T-shaped emptying vertical pipe of the hydrogen refueling station comprises a vertical pipe sleeve group, a vertical pipe fixing device and an emptying pipe connecting node, the vertical pipe sleeve set comprises a plurality of vertical pipe assemblies which are connected end to end in the vertical direction and are fixed to form an integrated structure. The stand pipe fixing device is installed on the surface of the outer side of the stand pipe sleeve set and used for supporting a T-shaped emptying stand pipe of the hydrogen refueling station. The blow-down pipe connecting node is arranged on the side surface of the vertical pipe sleeve set and close to the bottom of the vertical pipe sleeve set and used for being connected with a blow-down pipe and introducing hydrogen. The T-shaped emptying vertical pipe of the hydrogen refueling station provided by the embodiment of the utility model is simple in structure, not only can ensure the safe discharge of hydrogen of the hydrogen refueling station, but also can meet the specified requirements of the technical specification of the hydrogen refueling station.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen refueling stations, in particular to a "T-shaped" venting standpipe of a hydrogen refueling station. Background Art

[0002] According to the "Technical Specifications for Hydrogen Refueling Stations" currently issued by the state, the country currently attaches great importance to the safe discharge of hydrogen gas from hydrogen refueling stations. Existing hydrogen discharge measures at hydrogen refueling stations (such as the configuration of the venting system) cannot meet the requirements of the "Technical Specifications for Hydrogen Refueling Stations". Therefore, there is an urgent need to design a hydrogen venting device for hydrogen refueling stations to ensure the safe discharge of hydrogen gas from hydrogen refueling stations and meet the requirements of the "Technical Specifications for Hydrogen Refueling Stations". Utility Model Content

[0003] In order to solve the above problems, the purpose of the embodiments of the present invention is to provide a "T-shaped" venting standpipe for a hydrogen refueling station.

[0004] The embodiment of the utility model provides a "T-shaped" venting standpipe for a hydrogen refueling station, comprising: a standpipe set (1), a standpipe fixing device (2) and a venting pipe connection node (3).

[0005] The riser set (1) comprises a plurality of riser components connected end to end in a vertical direction and fixed to form an integral structure.

[0006] The standpipe fixing device (2) is installed on the outer surface of the standpipe set (1) and is used to provide support for the "T-shaped" vent standpipe of the hydrogen station.

[0007] The vent pipe connection node (3) is arranged on the side surface of the riser sleeve (1) and close to the bottom of the riser sleeve (1), and is used to connect the vent pipe and introduce hydrogen.

[0008] Optionally, the riser set (1) comprises: a first riser assembly (11), a second riser assembly (12) and a third riser assembly (13).

[0009] The first riser assembly (11) is located at the lower section of the riser set (1), the second riser assembly (12) is located at the middle section of the riser set (1), and the third riser assembly (13) is located at the second upper section of the riser set (1). The pipe diameter of the first riser assembly (11) is larger than the pipe diameter of the second riser assembly (12), and the pipe diameter of the second riser assembly (12) is larger than the pipe diameter of the third riser assembly (13).

[0010] Optionally, the height of the top pipe opening of the riser sleeve (1) is at least higher than a first preset height of the highest point of the facilities in the hydrogen station, and at least higher than a second preset height of the ground where the riser sleeve (1) is located, and the first preset height is lower than the second preset height.

[0011] Optionally, the riser fixing device (2) is a guy rope.

[0012] Optionally, the horizontal angle of the riser fixing device (2) is not less than 90 degrees.

[0013] Optionally, there are multiple vent pipe connection nodes (3), and each vent pipe connection node (3) corresponds to a vent pipe of a different pressure level.

[0014] Optionally, the "T-shaped" venting riser of the hydrogenation station further includes: a top protection device (4); the top protection device (4) is arranged at the top pipe opening of the riser set (1) to provide protection for the riser set (1).

[0015] Optionally, the top protective device (4) is a T-shaped structure.

[0016] Optionally, the "T-shaped" venting standpipe of the hydrogenation station further comprises: a flame arrester (5); the flame arrester (5) is arranged at a position close to the top of the standpipe assembly (1).

[0017] Optionally, the "T-shaped" venting standpipe of the hydrogen refueling station further includes: a drainage hole (6); the drainage hole (6) is located at the bottom of the standpipe assembly (1), and the bottom of the drainage hole (6) is connected to a drainage pipe (61) and a drainage valve.

[0018] In the solution provided in the embodiment of the present invention, the "T-shaped" vent riser structure of the hydrogen refueling station is simple, which can not only ensure the safe discharge of hydrogen from the hydrogen refueling station, but also meet the requirements of the "Technical Specifications for Hydrogen Refueling Stations".

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 The specific structural diagram of a "T-shaped" vent standpipe for a hydrogen refueling station provided by an embodiment of the utility model is shown;

[0022] Figure 2The diagram shows an enlarged schematic diagram of the structure of the connection node A between any two standpipe assemblies in the "T-shaped" vent standpipe of the hydrogen refueling station provided by the embodiment of the present invention;

[0023] Figure 3 It shows an enlarged schematic diagram of the structure of the connection node B of the standpipe fixing device in the "T-shaped" vent standpipe of the hydrogen station provided by the embodiment of the present utility model.

[0024] icon:

[0025] 1- riser set, 2- riser fixture, 3- vent pipe connection node, 4- top protection device, 5- flame arrester, 6- drain hole, 11- first riser assembly, 12- second riser assembly, 13- third riser assembly, 61- drainage pipe, A- connection node between any two riser assemblies, B- connection node of the riser fixture, C- vent pipe access portion. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention provides a "T-shaped" venting standpipe for a hydrogenation station. Figure 1 As shown, the "T-shaped" vent standpipe of the hydrogen refueling station includes a standpipe assembly 1, a standpipe fixture 2, and a vent pipe connection node 3. The standpipe assembly 1 is vertically mounted on the floor, for example, within the hydrogen refueling station, to discharge hydrogen discharged from the station through the standpipe assembly 1.

[0030] In the embodiment of the present invention, the floor height of the riser set 1 can be consistent with the floor height of the hydrogenation station canopy. The hydrogenation station canopy is the highest point of the facilities in the station and can be 11.21 meters high. Figure 1 As shown, the height of the top nozzle of the riser set 1 is at least higher than the first preset height of the highest point of the facilities in the hydrogen station, and at least higher than the second preset height of the ground where the riser set 1 is located, and the first preset height is less than the second preset height. Among them, the first preset height can be 2 meters, and the second preset height can be 5 meters. In other words, the height of the top nozzle of the riser set 1 can be at least 2 meters higher than the highest point of the canopy of the hydrogen station. For example, the riser set 1 can be 2.48 meters higher than the canopy. In addition, the height of the top nozzle of the riser set 1 can be at least 5 meters higher than the ground where it is installed. For example, the riser set 1 can be 13.7 meters higher than the ground where it is located. Based on this, not only can hydrogen be effectively discharged from the hydrogen station through the riser set 1, but the requirements of the "Technical Specifications for Hydrogen Stations" can also be met.

[0031] Further, the specific structure of the riser set 1 can be found in Figure 1 As shown, it includes multiple riser assemblies connected end to end in a vertical direction and fixed to form an integrated structure. Specifically, riser assembly 1 includes: a first riser assembly 11, a second riser assembly 12, and a third riser assembly 13. First riser assembly 11 is located in the lower section of riser assembly 1, second riser assembly 12 is located in the middle section of riser assembly 1, and third riser assembly 13 is located in the upper section of riser assembly 1. The diameter of first riser assembly 11 is larger than that of second riser assembly 12, and the diameter of second riser assembly 12 is larger than that of third riser assembly 13. In other words, the lower end of third riser assembly 13 is inserted from top to bottom into the upper end of second riser assembly 12 for fixed connection (e.g., welding), so that the two riser assemblies form part of riser assembly 1. Similarly, the lower end of second riser assembly 12 is inserted from top to bottom into the upper end of first riser assembly 11 for fixed connection (e.g., welding), so that the two riser assemblies form another part of riser assembly 1. By such upper and lower sleeve connection, a vertically connected riser set 1 is finally formed. Specifically, the enlarged view of the connection node A between any two riser assemblies can be seen in FIG. Figure 2In this embodiment of the present invention, the first riser assembly 11 has a diameter of φ219×10 mm and a length of 5 meters; the second riser assembly 12 has a diameter of φ159×8 mm and a length of 5 meters; and the third riser assembly 13 has a diameter of φ108×8 mm and a length of 3.5 meters. All three riser assemblies may be SS304 seamless stainless steel pipes.

[0032] Furthermore, if Figure 1 As shown, the standpipe fixing device 2 in the "T-shaped" venting standpipe of the hydrogen refueling station is installed on the outer surface of the standpipe set 1 to provide support for the "T-shaped" venting standpipe of the hydrogen refueling station. Optionally, the standpipe fixing device 2 can be a cable. For example, three cables can be provided, and the angles of the cables can be adjusted according to the actual situation on site. Specifically, the horizontal angle of the standpipe fixing device 2 is not less than 90 degrees (such as the horizontal angle between the side of the cable away from the standpipe set 1 and the ground), and the vertical angle between the standpipe fixing device 2 and the standpipe set 1 is not less than 30 degrees. Figure 3 As shown, Figure 3 The specific structure of the connection node B of the riser fixing device is shown.

[0033] In addition, if Figure 1 As shown, the vent pipe connection node 3 is set on the side surface of the riser set 1 and close to the bottom of the riser set 1, and is used to connect with the vent pipe ( Figure 1 The vent pipe access part is shown by the figure mark C) as the connection node between the vent pipe and the riser set 1, so that the hydrogen released by the vent pipe can enter the riser set 1 through the vent pipe connection node 3 to achieve final discharge.

[0034] The "T-shaped" vent riser structure of the hydrogen refueling station provided by the embodiment of the utility model is simple, which can not only ensure the safe discharge of hydrogen from the hydrogen refueling station, but also meet the requirements of the "Technical Specifications for Hydrogen Refueling Stations".

[0035] Optionally, there are multiple vent pipe connection nodes 3, and each vent pipe connection node 3 corresponds to a vent pipe of a different pressure level. Figure 1 As shown, three vent pipe connection nodes 3 can be provided on the riser set 1, and the three vent pipe connection nodes 3 correspond to vent pipes of different pressure levels. It should be noted that the diameter of the vent pipe can be DN50.

[0036] Alternatively, as Figure 1As shown, the "T-shaped" venting standpipe of the hydrogen refueling station also includes a top protective device 4. This top protective device 4 is installed at the top pipe opening of the standpipe assembly 1 to provide protection for the standpipe assembly 1. For example, this top protective device 4 can be a rust-proof and insect-proof net, a rain leak prevention device, etc., to prevent clogging by debris and the intrusion of rain and snow. Optionally, this top protective device 4 is a T-shaped structure, for example, a T-shaped stainless steel seamless pipe with a diameter of DN125.

[0037] Alternatively, as Figure 1 As shown, the "T-shaped" venting standpipe of the hydrogen refueling station further includes a flame arrester 5. The flame arrester 5 is arranged near the top of the standpipe assembly 1 for further fire prevention.

[0038] Alternatively, as Figure 1 As shown, the "T-shaped" venting standpipe of the hydrogen filling station also includes: a drain hole 6. The drain hole 6 is located at the bottom of the standpipe set 1, and the bottom of the drain hole 6 is connected to the drainage pipe 61 and the drain valve, thereby reasonably considering the rainwater discharge function of the "T-shaped" venting standpipe of the hydrogen filling station. It should be noted that the drain valve can be a DN15 ball valve ( Figure 1 not directly shown).

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technical solution that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A "T-shaped" vent standpipe for a hydrogen refueling station, characterized in that: include: Riser set (1), riser fixing device (2) and vent pipe connection node (3); The riser set (1) comprises a plurality of riser components connected end to end in a vertical direction and fixed to form an integrated structure; The standpipe fixing device (2) is installed on the outer surface of the standpipe sleeve (1) and is used to provide support for the "T-shaped" venting standpipe of the hydrogen refueling station; The vent pipe connection node (3) is arranged on the side surface of the riser sleeve (1) and close to the bottom of the riser sleeve (1), and is used to connect the vent pipe and introduce hydrogen.

2. The "T-shaped" venting standpipe of the hydrogen refueling station according to claim 1 is characterized in that: The riser assembly (1) comprises: a first riser assembly (11), a second riser assembly (12) and a third riser assembly (13); The first riser assembly (11) is located at the lower section of the riser set (1), the second riser assembly (12) is located at the middle section of the riser set (1), and the third riser assembly (13) is located at the upper section of the riser set (1); and the pipe diameter of the first riser assembly (11) is larger than the pipe diameter of the second riser assembly (12), and the pipe diameter of the second riser assembly (12) is larger than the pipe diameter of the third riser assembly (13).

3. The "T-shaped" venting standpipe of the hydrogen refueling station according to claim 1 is characterized in that: The height of the top pipe opening of the riser sleeve (1) is at least higher than a first preset height of the highest point of the facilities in the hydrogen station, and at least higher than a second preset height of the ground where the riser sleeve (1) is located, and the first preset height is lower than the second preset height.

4. The "T-shaped" venting standpipe of the hydrogen refueling station according to claim 1 is characterized in that: The riser fixing device (2) is a guy rope.

5. The "T-shaped" venting standpipe of the hydrogen refueling station according to claim 4 is characterized in that: The horizontal angle of the vertical pipe fixing device (2) is not less than 90 degrees.

6. The "T-shaped" venting standpipe of a hydrogen refueling station according to claim 1 is characterized in that: There are multiple vent pipe connection nodes (3), and each vent pipe connection node (3) corresponds to a vent pipe of a different pressure level.

7. The "T-shaped" vent standpipe of a hydrogen refueling station according to claim 1, characterized in that: Also includes: A top protection device (4); the top protection device (4) is arranged at the top pipe opening of the riser sleeve (1) and is used to provide protection for the riser sleeve (1).

8. The "T-shaped" venting standpipe of a hydrogen refueling station according to claim 7 is characterized in that: The top protection device (4) is a T-shaped structure.

9. The "T-shaped" vent standpipe of a hydrogen refueling station according to claim 1, characterized in that: Also includes: Flame arrester (5); the flame arrester (5) is arranged at a position close to the top of the riser sleeve (1).

10. The "T-shaped" vent standpipe of a hydrogen refueling station according to claim 1, characterized in that: Also includes: Drain hole (6); the drain hole (6) is located at the bottom of the riser sleeve (1), and the bottom of the drain hole (6) is connected to a drainage pipe (61) and a drainage valve.

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